J/MNRAS/474/1909 Passive spiral galaxies quench (Fraser-McKelvie+, 2018)
Multiple mechanisms quench passive spiral galaxies.
Fraser-McKelvie A., Brown M.J.I., Pimbblet K., Dolley T., Bonne N.J.
<Mon. Not. R. Astron. Soc., 474, 1909-1921 (2018)>
=2018MNRAS.474.1909F 2018MNRAS.474.1909F (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, nearby ; Morphology
Keywords: galaxies: evolution - galaxies: general - galaxies: spiral -
galaxies: stellar content
Abstract:
We examine the properties of a sample of 35 nearby passive spiral
galaxies in order to determine their dominant quenching mechanism(s).
All five low-mass (M*<1x1010M☉) passive spiral galaxies are
located in the rich Virgo cluster. This is in contrast to low-mass
spiral galaxies with star formation, which inhabit a range of
environments. We postulate that cluster-scale gas stripping and
heating mechanisms operating only in rich clusters are required to
quench low-mass passive spirals, and ram-pressure stripping and
strangulation are obvious candidates. For higher mass passive spirals,
while trends are present, the story is less clear. The passive spiral
bar fraction is high: 74±15 per cent, compared with 36±5 per cent
for a mass, redshift and T-type matched comparison sample of
star-forming spiral galaxies. The high mass passive spirals occur
mostly, but not exclusively, in groups, and can be central or
satellite galaxies. The passive spiral group fraction of 74±15 per
cent is similar to that of the comparison sample of star-forming
galaxies at 61±7 per cent. We find evidence for both quenching via
internal structure and environment in our passive spiral sample,
though some galaxies have evidence of neither. From this, we conclude
no one mechanism is responsible for quenching star formation in
passive spiral galaxies - rather, a mixture of mechanisms is
required to produce the passive spiral distribution we see today.
Description:
We investigate what quenched star formation in passive spiral
galaxies, using a sample of 35 z<0.033 passive spiral galaxies and a
comparison sample matched in mass, z and T-Type.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 86 140 The mass, z and T-type-matched comparison sample
of all spiral galaxies and their properties
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Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Passive Passive spiral galaxy name
12- 20 A9 ---- CGalaxy Comparison galaxy name (1)
22- 29 F8.4 deg RAdeg Comparison galaxy right ascension (J2000)
31- 37 F7.4 deg DEdeg Comparison galaxy declination (J2000)
39- 44 F6.4 --- z Comparison galaxy redshift from
Bonne et al. (2015ApJ...799..160B 2015ApJ...799..160B)
46- 51 F6.2 Mpc D Comparison galaxy distance (2)
52 A1 --- n_D [*] * if flow-corrected distances (2)
54- 61 E8.3 Msun Mass Comparison galaxy mass from NASA Sloan Atlas
64 I1 --- TType Comparison galaxy T-type (3)
66- 68 I3 --- Ngroup Number of galaxies in the group from
Tully (2015ApJ...799..160B 2015ApJ...799..160B)
70- 78 A9 --- Env Galaxy environmental properties from Tully
(2015ApJ...799..160B 2015ApJ...799..160B)
80- 82 A3 --- Bar? [Yes/No ] Presence of a bar from visual
inspection of SDSS images by the authors
84- 86 A3 --- AnsaBar? [Yes/No ] Presence of a ansa bar from visual
inspection of SDSS images by the authors (4)
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Note (1): comparisons matched most closely in mass, z and T-type from the sample
of Bonne et al. (2015ApJ...799..160B 2015ApJ...799..160B).
Note (2): denotes redshift independent distances from NED, collated by
Bonne et al. (2015ApJ...799..160B 2015ApJ...799..160B), otherwise these are flow-corrected
distances, calculated by Bonne et al. (2015ApJ...799..160B 2015ApJ...799..160B), with * in n_ID.
Note (3): Compiled by Bonne et al. (2015ApJ...799..160B 2015ApJ...799..160B), most of which are from
Paturel et al. (2003A&A...412...45P 2003A&A...412...45P, Cat. VII/237).
Note (4): ansa bars are bars that terminate with two distinct enhancements of
light at either end of the bar (or a "handle").
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 17-Feb-2021